Poltergeist's Puzzles

I think someone really needs to look into this. Today I had the question, “Who is Harry Potter’s Godfather?” Think we all know the answer to that. So, of course I typed in the correct answer, and it tells me it’s wrong. I checked my spelling, thinking that might have triggered the wrong answer, but my spelling was correct. This is NOT the first time this has happened. It’s been numerous times. I’d have the correct answer, and it tells me I got it wrong, when I know perfectly well, I did not have it wrong.